3111205493 has 8 divisors (see below), whose sum is σ = 3397563840. Its totient is φ = 2825434080.

The previous prime is 3111205481. The next prime is 3111205499. The reversal of 3111205493 is 3945021113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3111205493 - 2¹² = 3111201397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111205499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135608 + ... + 156881.

It is an arithmetic number, because the mean of its divisors is an integer number (424695480).

Almost surely, 2^3111205493 is an apocalyptic number.

It is an amenable number.

3111205493 is a deficient number, since it is larger than the sum of its proper divisors (286358347).

3111205493 is a wasteful number, since it uses less digits than its factorization.

3111205493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293467.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 3111205493 is about 55778.1811553586. The cubic root of 3111205493 is about 1459.8544755499.

It can be divided in two parts, 311120 and 5493, that added together give a palindrome (316613).

The spelling of 3111205493 in words is "three billion, one hundred eleven million, two hundred five thousand, four hundred ninety-three".